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Best Cities for Solar in Washington

Top 20 ZIP codes ranked by opportunity score. Score combines walkability (foot traffic), population density, median income, and food truck competition.

80–100 Excellent 60–79 Good 40–59 Fair <40 Challenging

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#	ZIP Code	Score	Walkability	Median Income
#1	ZIP 98029 Pop. 31 Thousand	100 Excellent	—	$164,058
#2	ZIP 99005 Pop. 11 Thousand	100 Excellent	—	$123,259
#3	ZIP 98101 Pop. 16 Thousand	100 Excellent	—	$128,143
#4	ZIP 98014 Pop. 7.7 Thousand	100 Excellent	—	$157,680
#5	ZIP 98625 Pop. 7 Thousand	100 Excellent	—	$118,536
#6	ZIP 98121 Pop. 21 Thousand	99 Excellent	19.1 /20	$148,974
#7	ZIP 98443 Pop. 5.8 Thousand	98 Excellent	—	$117,423
#8	ZIP 99025 Pop. 5.8 Thousand	98 Excellent	—	$117,283
#9	ZIP 98327 Pop. 10 Thousand	96 Excellent	—	$114,423
#10	ZIP 98102 Pop. 27 Thousand	96 Excellent	—	$114,395
#11	ZIP 98112 Pop. 24 Thousand	95 Excellent	16.5 /20	$162,073
#12	ZIP 98524 Pop. 4.6 Thousand	94 Excellent	—	$108,526
#13	ZIP 98117 Pop. 35 Thousand	93 Excellent	15.7 /20	$182,500
#14	ZIP 98116 Pop. 28 Thousand	91 Excellent	14.2 /20	$130,504
#15	ZIP 98008 Pop. 27 Thousand	89 Excellent	13.5 /20	$175,242
#16	ZIP 98004 Pop. 39 Thousand	88 Excellent	12.7 /20	$176,367
#17	ZIP 98122 Pop. 42 Thousand	88 Excellent	16.2 /20	$106,479
#18	ZIP 98365 Pop. 5.2 Thousand	88 Excellent	—	$98,393
#19	ZIP 98118 Pop. 50 Thousand	87 Excellent	14.1 /20	$109,085
#20	ZIP 98406 Pop. 24 Thousand	87 Excellent	15.5 /20	$104,761

Data updated March 2026. Sources: Census Bureau ACS 2023, USDA National Walkability Index 2021, County Business Patterns 2022.

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